* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  header {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  nav ul {
    display: flex;
    list-style: none;
  }
  
  nav ul li {
    margin-left: 1rem;
  }
  
  nav ul li a {
    color: #fff;
    text-decoration: none;
  }
  
  main {
    padding: 2rem 0;
  }
  
  section {
    margin-bottom: 2rem;
    background-color: #fff;
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .form-group {
    margin-bottom: 1rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.5rem;
  }
  
  input, textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
  }
  
  button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 4px;
  }
  
  button:hover {
    background-color: #555;
  }
  
  footer {
    text-align: center;
    padding: 1rem 0;
    background-color: #333;
    color: #fff;
    margin-top: 2rem;
  }